Means for operating camera-shutters.



B. L. PARKER. I MEANS FOR OPERATING CAMERA SHUTTERS.

APPLICATION FILED JULY 13, l9l6.

fmvevfar Patented Jam-29, 1918.

iiivrra' LsZtAIES PATENT oar-ion.

BENJAMIN LOT PARKER, or GENOA, ILLINoIsj MEANS FOR OPERATING CAMERA-SHUTTERS.

Application filed July 13, 1916.

b all whom it may concern.

Be it known that I, BENJAMIN Ii. PARKER, a citizen of the United States, residing at Genoa, State of Illinois, have invented a new and useful Improvement in h Ieans for Operating Camera-Slmtters, of which the following is a specification.

.My invention relates to self-acting means for operating a camera shutter and is so designed as to be readily and quickly attached to the shutter either directly or through the ordinary wire release now in use.

It is a further object to product a device of this class so designed. that it may be set in motion by an, exceedingly low electrical current.

It is a further object to produce adevice of this class so designed as to prevent repeating or re-operating of the shutter without first being reset.

The above and other features of advantage and capabilities willv become apparent from a detail description of the accompanying drawings, in which I have illustrated a practical embodiment of the invention, but the construction there shown is to be understood as illustrative only, and not as defining the limits of the invention.

Figure 1 is an elevational view of a camera with an operating means embodying my invention applied thereto.

Fig. 2 is a longitudinal sectional view of the operating means shown in Fig. 1, and

Fig. 3 is a sectional view taken approximately on the line 33 of Fig. 2.

Referring to the drawings in detail, all the operating means are shown mounted in a rectangular casing 10. which casing is provided with a spring clip 11 for readily and quickly securing the casing to a platform or support of the usual camera.

Pivotally connected at one end with the lugs 12, which are secured to the end of the casing, is a slotted trip lever 13, which normally rests at its opposite end on an armature 14, which armature is pivoted at its lower end in the lugs 15. Adjacent to the armature 14 is a pair of electromagnets 16 arranged. one above the other, the windings of which are connected in such a manner as to produce a north and south magnetic pole at the pole tips when the current is applied. The ends of the windings terminate at the Specification of Letters Patent. Patented Jan, 29, 1918,

Serial No. 108,969.

posts 17 and 18, which posts are in turn connected to a battery or other source of current supply not shown.

Pivotally connected at one end to the casing 10 is a spring pressed operating lever 19, which lever extends outwardly through a slotted opening in the casing, with its free or opposite end connected by means of a wire 20 to the camera shutter as shown. The operating lever 19 is by a slot and pin connected to the trip lever 13. From this it will readily be seen that when the armature 14: is drawn inwardly by means of the current when applied, the trip lever 13 is released, thus allowing the free end of the operating lever 19 to be forced downwardly by means of the coil spring 21, and as the free end of the operating lever is moved downwardly it operates the shutter of the camera,

this it can do either when connected directly to the shutter by the wire 20 as shown, or when connected integrally by means of the usual wire release 22.

The device is particularly desirable for the reason that the lever connections are so arranged that it will require but very little power or current to trip the lever 13 and start the mechanism to work, and for the further reason that it is absolutely impossible to have a repeat or re-operation of the shutter without first resetting the operating mechanism. To reset the mechanism all that is necessary is to grasp the free end of the operating lever 19 and raise it upwardly in its slotted opening in the casing 10, until the free end of the trip lever 13 has been raised sufficiently high as to rest on the upper edge of the armature 14, in which position it is again ready for operation. The free end of the trip lever 13 engages the armature and as the lever moves upwardly restores the armature to its normal position.

lVhile I have described the operating means as being used in connection with a camera Sl111ttG1,'1t is quite obvious that it may be used in connection with other devices and for other purposes.

I claim:

In a trip mechanism, a casing, a horizontal operating lever pivotally mounted at one end in said casing, the opposite end being adapted to upward and downward movement, a trip lever mounted in said casing having a slidable connection with said operating lever In Witness whereof, I hereunto subscribe near the free end thereof, an armature 111 my name to thls speclficatlon 1n the presence said caslng upon which the free end of szud of two Witnesses.

trip lever normally rests and electrically op- BENJAMIN LOT PARKER. erated means for disconnecting said arma- WVitnesses:

ture from the free end of said trip lever for C. BORGMANN,

the purpose set forth. G. J. HONTS.

flames eff this patent may be obtained for five cents-each, by addressing the Commissioner of Patents,

- Washington, D. 0. 

